Spring 定時器的應用及表達式解釋

先看applicationContext.xml下面的beans

2. <!-- Trigger -->  
4.   
5.     <bean id="autoJob" class="com.spring.app.AutoJob" />  
6.   
7.     <bean id="autoTask" class="com.spring.app.AutoTask" />  
8.   
9.     <bean name="autoWeekly" class="org.springframework.scheduling.quartz.JobDetailBean">  
10.         <property name="jobClass" value="com.spring.app.AutoWeekly" />  
11.     </bean>  
12.   
13.     <bean id="job" class="org.springframework.scheduling.quartz.SimpleTriggerBean">  
14.   
15.         <property name="jobDetail" ref="jobDetail" />  
16.         <property name="startDelay" value="10000" />  
17.         <property name="repeatInterval" value="50000" />  
18.     </bean>  
19.   
20.     <bean id="cronTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean">  
21.         <property name="jobDetail" ref="autoWeekly" />  
22.         <!-- run every morning at 6 AM -->  
23.         <property name="cronExpression" value="0 33 18 * * ?" />  
24.     </bean>  
25.   
26.     <bean id="scheduledTask" class="org.springframework.scheduling.timer.ScheduledTimerTask">  
27.         <!-- wait 10 seconds before starting repeated execution -->  
28.         <property name="delay" value="1000" />  
29.         <!-- run every 50 seconds -->  
30.         <property name="period" value="5000" />  
31.         <property name="timerTask" ref="autoTask" />  
32.     </bean>  
33.     <!-- 使用TimerFactoryBean來設置任務 -->  
34.     <bean id="timerFactory" class="org.springframework.scheduling.timer.TimerFactoryBean">  
35.         <property name="scheduledTimerTasks">  
36.             <list>  
37.                 <ref bean="scheduledTask" />  
38.             </list>  
39.         </property>  
40.     </bean>  
41.   
42.     <bean id="jobDetail"  
43.         class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">  
44.         <property name="targetObject" ref="autoJob" />  
45.         <property name="targetMethod" value="doIt" />  
46.         <property name="concurrent" value="false" />  
47.     </bean>  
48.   
49.     <bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">  
50.         <property name="triggers">  
51.             <list>  
52.                 <ref bean="cronTrigger" />  
53.                 <ref bean="job" />  
54.             </list>  
55.         </property>  
56.     </bean>  
57.   
58.     <!-- Trigger end -->